The Roman Assemblies were institutions in ancient Rome. They functioned as the machinery of the Roman legislative branch, and thus (theoretically at least) passed all legislation. Since the assemblies operated on the basis of direct democracy, ordinary citizens, and not elected representatives, would cast all ballots. The assemblies were subject to strong checks on their power by the executive branch and by the Roman Senate. Laws were passed (and magistrates elected) by Curia (in the Curiate Assembly), Tribes (in the Tribal Assembly), and Centuries (in the Centuriate Assembly).